# System Rx vs DomainDetails

The clearest difference is in-app purchases: System Rx at none against DomainDetails's 2. System Rx also leads on device support (3 vs 1). DomainDetails's advantage is update cadence (daily vs every 3 weeks). On price, ads and iOS requirement there is nothing between them.

Both are free to download. DomainDetails sells 2 in-app purchases, starting at $9.99 per month. System Rx asks for nothing beyond the download.

System Rx ships an update every 3 weeks, DomainDetails daily. The most recent releases landed on October 11, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | System Rx | DomainDetails |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Daily** |
| Size | 2 MB | 34 MB |
| Requires iOS | 17.0 | **16.4** |
| Devices | **iPhone, iPad, Mac** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Mohamed Saud](https://appshunter.io/developer/1797283594) | [Simple Bytes](https://appshunter.io/developer/1872812981) |

## What reviewers say

### System Rx

[App page](https://appshunter.io/ios/app/system-rx/id6761538119)

**Features:** Vision Pro support

**In-app purchases:** none


### DomainDetails

[App page](https://appshunter.io/ios/app/domaindetails/id6786011382)

**Features:** Safari Extension

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| DomainDetails Pro Monthly | $9.99 | per month |
| DomainDetails Pro Yearly | $99.99 | per year |


## Frequently asked questions

### Is System Rx free?

System Rx is free to download, with no in-app purchases.

### Is DomainDetails free?

DomainDetails is free to download, with in-app purchases available.

### Do System Rx or DomainDetails have ads?

Neither System Rx nor DomainDetails shows ads.

### Which is updated more often, System Rx or DomainDetails?

System Rx ships an update every 3 weeks, and DomainDetails daily. Most recently, System Rx was updated on October 11, 2026 and DomainDetails on October 25, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*